-39.01% is the change from 323 to 197
Calculation steps:
[( 197 - 323 ) ÷ 323] x 100 = -39.01%
Formula
Percentage change = [(197 - 323) / 323] x 100
Subtract the new number by the original number
197 - 323 = -126
-126 ÷ 323 = -0.39009287925696595
-0.39009287925696595 x 100 = -39.01%